1978  Mingyuexiaceras Zhao, Liang & Zheng: 122, 180.
     2002  Tapashanites.-Leonova: S101.

Type species: Mingyuexiaceras radiatum Zhao, Liang & Zheng, 1978, p.122; OD.

[Zhao et al., 1978]: Shell moderately evolute, discoidal with smooth, well rounded venter, slightly convex sides and suboval
whorl section. Surface provided with rather fine radial plications on the lateral sides and die out on the ventro-lateral
portion. Umbilicus moderately wide and shallow bounded by low walls and arched edges. Suture line ceratitic with rather
short, wide ventral lobe, divided by a median saddle into two prongs, bearing few denticulations at posterior end, lateral
lobe rather long.